EXPERT SYSTEM Expert system is an information system

EXPERT SYSTEM

Expert system is an information system that captures and stores the knowledge of human experts and then imitates human reasoning and decision- making process for those who have less expertise. Expert system are composed of two main components: - a knowledge base and inference rules.

Display the intelligent behavior. Ø Explain the reasoning. Ø Draw conclusions from complex relationships. Ø Provide needed portable knowledge. Ø Deals with the certainty. Ø Limited to narrow problem. Ø Difficult to maintain. Ø

Human expertise is very scarce. v Humans get tired from physical or mental workload. v Humans forget crucial details of a problem. v Humans are inconsistent in their day to day decisions. v Humans have limited working memory. v

v Humans are unable to retain large amounts of data in memory. v Humans are slow in recalling information. v Humans can deliberately avoid decision responsibilities. v Humans lie, hide and die.

Increase the probability , frequency and consistency of making good decisions. Ø Help distribute human expertise. Ø Facilitate real time , low cost expert level decisions by non-expert. Ø Enhance the utilization of most of the available data. Ø Permit dynamism through modularity of structure. Ø

Encourage investigations into the subtle areas of a problem. Ø Free up the mind of human expert to concentrate on more creative activities. Ø

Vithoulkas expert system Medical expert system Agricultural expert system

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